Car-wheel



UNITED STATES PATENT @EF1-CE.

IIENRY F. MANN, OF ALLEGIIENY, PENNSYLVANIA.

CAR-WH EEL.

SPECIFICATION forming part of Letters Patent No. 408,891, dated August13, 1889.

Serial No. 301,958. (No model.)

To all whom it may concern:

Be it known that I, HENRY F. MANN, a citizen of the United States,residing at Allegheny, in the county of Allegheny and State ofPennsylvania, have invented or discovered certain new and usefulImprovements in Vheels, of which in'lprovements the following is aspecification.

In an application, Serial No. 290,705, filed November 13, 1838, I havedescribed and claimed a Wrought-iron or steel carwheel wherein provisionis made for bracing and strengthenin the tread and flange as againstradial and lateral strains, respectively, by a fold of metal lyingparallel with or against the flange.

The invention herein has for its object the attainment of the samefunctions by upsetting the edge of the flange, thereby increasing theamount of metal at such edge with a consequent increase of rigidity inthe tread and flange portions of the Wheel as against lateral and radialstrains and a broadening of the bearing-edge of the flange.

The invention will be herein after more fully described and claimed.

In the accompanying drawings, forming a part of this specification,Figure l is a view in sectional elevation illustrating one method offorming a beadedlip on the flange-edge, and Fig. 2 is a similar viewillustrating another method of forming said lip'.

In the practice of my invention the edge of a circular disk l ofsuitable dimensions is turned over to or approximately to Aa right angleto the body of the disk, said turnedover portion being of sufficientWidth to form not only the tread 2 and flange 3,Which is formed bybending outwardly thel edge of the portion turned over to form thetread, but also to afford sufficient metal for the formation of athickened lip or bead 4 on the edge of the flange, as hereinafterdescribed. After the formation of the tread and flange, which can beeffected by a suitable flanging-machine or by drop-dies in the mannerWell known in the art, the Wheel is clamped against a rotating die 5 bymeans of an outside chuck or holder 6, the die and chuck beingconstructed to so hold and support the tread and flange as to preventdistortion of said parts of the Wheel. The die 5 is further providedWitha shoulder 7, over and against which the excess of metal provided atthe edge of the flange, as hereinbefore stated, may be turned and upset.Previous to clamping the Wheel onto the rotating die, as stated, theflange portion may be heated sufficiently to permit of the Working ofthe edge thereof. A roller 8, having a shaping-groove 9, is next forcedagainst the edge of the flange, thereby bending such edge over theshoulder of the rotating' die 5 and simultaneous therewith upsetting themetal of said edge and forming the beaded lip 4, as shown. This bendingand upsetting operation may be effected Without heating the edge of theflange by a cold-rolling operation, and in lieu of a rotating die and a4shaping-roller, as described, an anvil-die 11 and drop-die 12, as shownin Fig. 2, may be employed. This beaded lip 4 produces, by reason of theadditional amount of metal provided in the liange-edge and thedisposition thereof, an increased rigidity in the flange as againstlateral strains, and also supports and braces the tread as againstradial shocks and strains; and, further, the head affords a broadbearing-surfaces on the edge of the flange, such as Will prevent anycutting or denting of the rails, cross-ties, platform or the flange-edgesill When a hand-car, t-ruck, or other similar vehicle or part thereofis removed from its normal position on the rails.

The invention describedy herein is not limited to a Wheel having the Webformed integral with the tread, as it is equally applicable to thatclass of wheels in which the Web is formed of Wooden spokes or an independent metal plate secured to the tread, as described and shown inthe application hereinbefore referred to.

I claim herein as my inventionl. A Wrought-iron or steel car-Wheelhaving its iiange-edge upset, thereby forming a re-enforcing bead orenlargement bracing the flange as against the shocks or strains to whichit is normally subjected, and increasing its edge bearing-surface,substantially as set forth.

` 2. A Wrought-iron or steel car-Wheel hav- IOO ing, in Combination, :Lweb, n trend connected In testimony whereof I have hereunto set' nt itsouter edge to the web, and n nnge my hand.

having its outer edge upset, thereby forming :L thickened lip or beadalong its edge for HENRY F. MANN.

5 the purpose of 1re-enforcing the ange against the shocks or strains towhich it is Witnesses:

normally subjected and increasing its henr- DARWIN S. XVOLCOTT,i11gsnrfnee, substantially as sei) forth. R. II. XVHITTLESEY.

